Thread-tension device.



G. J. SGHAUTZ & E. J. STOECKEL.

Patented Sept. 22, 1914.

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UNITED STATES 1?ATENT OFFICE.

GEORGE J. SCHAUTZ AND EDWIN J. STOECKEL, OF SCBANTON, PENNSYLVANIA.

THREAD-TENSION DEVICE.

Specification of Letters Patent.

Patented Sept. 22', 1914.

Application filed December 1, 1910, Serial No. 595.028. Renewed June 29, 1914. Serial No. 848,068.

To (1U whom 1'1 may concern I Be it known that we, lnoacs J. bcnaiz'rz and Eowlx J. Sroscnsn, residents of Scrandevice which ma be ver sensitive whereb the proper tension may be placed on the thread without liability of the threads breaking by the catching of a knot or the like.

Our invention consists in the parts and arrangements hereinafter shown, described andsct forth in the appended claim.

In the drawings which show by way of illustration one embodiment of the invention, Figure I. is a sectional view through a supporting frame showing our improved tension device in side elevation. Fig. II, is a view of the tension device removed from Fig. III. is a see- Fig. I.

, Our improved tension device is especially adapted to be attached to any well known tubing or quilling machine.

In the drawings we have shown more or less diagrammatically a supporting stand 1, from which rises the usual standard 2, having laterally projecting arms 3, and 4-. Pro jectiug from the end of the supporting stand 1. is a rotatable spindle which may be operated in any desired way. This spindle is adapted to receive the tube on which the yarn or thread is wound.

In Fig, I. we have shown a partially wound bobbin 6. on the spindle The thread is fed from a supply spool 7. which may be mounted in any suitable way on the stand 1. Projecting laterally from the arm 3. is a second bracket arm 8. which is bent upwardly at 9. at its outer end. Freely pivoted at the upper end of the portion 9, of the arm 8. is a plate 10.- which is secured thereto b a pivot screw 11. The plate 10. is provi ed with a plurality oi" spaced pins 12, each of which carries porcelain sleeves 13, which may be secured in any desired way on said pins. These porcelain sleeves are each provided with a plurality of circumferential grooves H, which act as guiding grooves for the thread or yarn running from the porcelain sleeves. As clearly shown in Fig. I, the plate 10. is pivoted so as to stand normally in a vertical plane. A second arm or plate 15, projects from the lateral arm or bracket 3. substantially the same distance as the arm 8, and is bent downwardly at its outer end to form a vertical supporting plate 16. Said. plate 16, carries a plurality of pins 17, upon each of which is mounted a porcelain sleeve 18, having circumferential grooves similar to those on the sleeves 13. The pins 12, are spaced and the pins 17, are similarly spaced and staggered relative to the pins'12, 12.

The plate 16. is stationary and the plate 10, as it swings about its pivot 11, will carry the porcelain sleeves supported thereon between the porcelain sleeves on the stationary )late. The thread from the supply spool i. is led through a guiding eye 19. The thread as it leaves the tension device passes through a guide eye 20, on the outer end of a wire mounted at :21, on the bracket arm 3.

As a means for swinging the vertically pivoted plate and the pins carried thereby, we have provided a weight 22, which is adjustably supported on a rod 23, rigidly secured to the upper end of the swinging plate 10, and projecting at right angles to said plate. When it is desired to thread the ten sion device the swing arm 10, is moved to the extreme left of Fig. I, to the position shown in dotted lines. The thread then is led between the porcelain sleeves carried by the swinging plate 10, and the stationary plate 16. When the swinging plate is released, the weight 22, will cause said swingng plate to move to the position shown in full lines in Fig. I, thus putting the thread which runs back and forth from one porcelain sleeve to the next adjacent sleeve. under a slight tension, said tension depending upon the distance the weight 22, is located from a vertical center line passing through the swinging plate By adjusting this weight back and forth on the rod 23, the tension may be varied. By mounting the plate 10. so that the same is normally in a vertical position when the weight 22, is not taken into consideration, I have provided entire tension on the thread is caused by the weight 22.

Viewing the parts in-the position shownin Fig. I, it will be seen that the weight of the plate 10, tends to move the pins over which the thread runs toward the vertical line passing through the pivotal support thereon, or in a direction to release the thread from tension. This tendency is overcome by the weight 22, and the actual tension on the thread is the difference between the moment ofthe weight of the plate and the moment of the weight 22. It will be seen therefore, as above noted, that the entire tension on the device is caused by the weight 22, and therefore, this tension may be made very light or just sufiicient to hold the thread in proper condition for winding 'on the bobbin. Then again, it will be noted that the thread from the supply passes into the tension device at the end thereof where there is the greatest movement between the pins over which the thread runs and thus gives a freer running of the thread and a more uniform tension. In order to prevent excessive movements of the swinging plate provided the thread should break, we have formed a stop lug 24, on the arm 8, which 'will be engaged by the swinging plate and prevent further movement thereoir It is obvious that minor changes in the details of construction may be made without departing from the spirit of our invention.

Having thus described our invention, we

claim D In a thread tension device, the combinationwith a support, of a horizontal arm extending forwardly therefrom, a second horizontal arm extending forwardly from said support and terminating in a downwardly extending vertical arm, a plurality of spaced horizontal pins carried bysaid vertical arm, a swinging arm pivotally mounted intermediate its ends to the second mentioned horizontal arm, spaced horizontal pins carried bysaid swingin arm and arranged to pass between the rst mentioned pins when said swinging arm is moved rearwardly or forwardly of the vertical arm, a

thread guide disposed below and in rear of said vertical arm, a second thread guide disposed in advance of said vertical arm, and means for yieldably'holding said swinging arm at an inclination whereby the pins carried by said arm will tension the thread In testimony whereof, we have hereunto signed our names at Scranton, Pennsylvania, this 29th day of November 1910.

GEORGE J. SCHAUTZ.

EDWIN J. STOECKEL. Vitnesses: DAVID P. Rooms, HENRY W. Lorros. 

